Corona-suppressing three-proof insulating coating for large generator and preparation method thereof

A technology for insulating coatings and generators, applied in anti-corrosion coatings, organic insulators, anti-fouling/underwater coatings, etc., can solve the adverse effects of insulation, corona suppression and "three-proof" performance, complex and changeable substrates , Reduce equipment reliability and other issues

Active Publication Date: 2018-04-10
JINTAN HUARONG INSULATING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the operation of the equipment, it is easily corroded by water vapor, dust and other substances, which will adversely affect the insulation, corona suppression and "three-proof" performance, thereby reducing the reliability of equipment operation
The substrates to be coated with surface insulating coatings are complex and changeable, including not only metals such as silicon steel sheets and copper, but also mica tapes, insulating film composite materials, etc. great technical challenge

Method used

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  • Corona-suppressing three-proof insulating coating for large generator and preparation method thereof
  • Corona-suppressing three-proof insulating coating for large generator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Component A: Add 2 parts by weight of aminomethylmethoxysilane to 8 parts by weight of n-butanol, raise the temperature to 65°C, and add 9 parts by weight of nano-SiO 2 Particles, stirred for 0.5h under heat preservation; then added 1 part by weight of polymethylnonafluorohexylsiloxane with a viscosity of 2.5mPas, heated to 80°C, stirred for 1.5h under heat preservation, and then mixed with the above Add 4 parts by weight of bisphenol A epoxy resin (epoxy value 0.5eq / 100g), 2 parts by weight of bisphenol F epoxy resin (0.42eq / 100g epoxy value), 6 parts by weight of CTBN toughening Modified epoxy resin, 2.5 parts by weight of nano zinc oxide, 7 parts by weight of micaceous iron oxide, 2 parts by weight of silicon carbide, 0.4 parts by weight of carbon black, 10 parts by weight of iron oxide red, 5 parts by weight of iron oxide Black, 5 parts by weight of aluminum polyphosphate, 3 parts by weight of barium sulfate, 1.5 parts by weight of a compound broad-spectrum anti-mil...

Embodiment 2

[0030] Component A: Add 1.5 parts by weight of aminoethylaminopropyltrimethoxysilane to 8 parts by weight of cyclohexanone, heat up to 58°C, and add 8 parts by weight of nano-SiO 2 Particles, stirred for 0.5h under heat preservation; then added 1.5 parts by weight of polyheptadecafluorodecylmethylsiloxane with a viscosity of 7mPas, heated to 76°C, stirred for 1.5h under heat preservation, and then added to the above-mentioned Add 3 parts by weight of bisphenol A epoxy resin (epoxy value 0.45eq / 100g), 4 parts by weight of bisphenol F epoxy resin (0.45eq / 100g of epoxy value), 7 parts by weight of CTBN epoxy resin in the mixing system Tough modified epoxy resin, 4 parts by weight of nano-zinc oxide, 6 parts by weight of micaceous iron oxide, 2 parts by weight of silicon carbide, 0.4 parts by weight of carbon black, 10 parts by weight of iron oxide red, 3 parts by weight of oxide Iron black, 5 parts by weight of aluminum polyphosphate, 3 parts by weight of barium sulfate, 1.5 part...

Embodiment 3

[0033] Component A: Add 1.2 parts by weight of aminomethyltrimethoxysilane to 7 parts by weight of xylene, heat up to 60°C, add 8 parts by weight of nano-SiO 2 Particles, stirred for 0.5h under heat preservation; then added 1.8 parts by weight of polymethyltrifluoropropylsiloxane with a viscosity of 14mPas, heated to 82°C, stirred for 1.5h under heat preservation, and then mixed with the above Add 4 parts by weight of bisphenol A epoxy resin (epoxy value 0.52eq / 100g), 2 parts by weight of bisphenol F epoxy resin (0.36eq / 100g of epoxy value), 6 parts by weight of CTBN toughening Modified epoxy resin, 2.5 parts by weight of nano-zinc oxide, 6 parts by weight of micaceous iron oxide, 2 parts by weight of silicon carbide, 0.5 parts by weight of carbon black, 12 parts by weight of iron oxide red, 3 parts by weight of iron oxide black, 5 parts by weight of aluminum polyphosphate, 4 parts by weight of barium sulfate, 1.2 parts by weight of compound broad-spectrum anti-mildew and anti...

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Abstract

The invention belongs to the field of paint study and particularly relates to corona-inhibiting and three-proofing insulating paint for large generators and a preparation method of the corona-inhibiting and three-proofing insulating paint. The insulating paint comprises a component A and a component B, wherein the component A comprises a fluorosiloxane polymer, an amino-alkyl silane modified nano-SiO2 particle mixture, modified resin, pigment and filler and a compound broad-spectrum mildewproof algaecide; the component B is a curing system and comprises a curing agent and a cosolvent. The prepared paint has strong hydrophobicity, has larger wetting angle and low adhesiveness for dust and oil pollution, realizes low adhesiveness and impenetrability for pollutants such as water, gas, dust and the like and avoids bad effects of the substances on corona inhibition, insulation, corrosion and the like.

Description

technical field [0001] The invention belongs to the field of paint research, in particular to a corona-suppressing "three-proof" insulating paint for large generators and a preparation method thereof. Background technique [0002] The surface insulation coating is a functional coating applied on the surface of the generator stator, rotor, and casing. In addition to good insulation performance, it should also have excellent "three-proof" functions, that is, excellent anti-salt spray, anti-humidity and heat and anti-mold properties. [0003] Motors characterized by high power and high voltage have been widely used in various industrial fields such as wind power, water conservancy, thermal power, large-scale power traction systems, and ultra-high voltage transmission and transformation systems. Since high-power generators have the characteristics of large unit capacity (up to megawatt level or above) and high insulation level requirements, higher requirements are put forward f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/25C09D5/08C09D5/14C09D5/16C09D7/62
CPCC08K2201/003C08K2201/011C08L2201/08C08L2205/025C08L2205/035C09D5/08C09D5/14C09D5/1618C09D7/61C09D7/63C09D163/00H01B3/40C08L63/00C08L13/00C08K13/06C08K9/06C08K3/36C08K5/0058C08K3/04C08K2003/2296
Inventor 陆帮荣陆小粽
Owner JINTAN HUARONG INSULATING MATERIAL CO LTD
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